CHOROID PLEXUS
The choroid plexus is a structure in form of a sheet present inside the brain ventricles.
Its epithelium is a single layer of specialized cuboidal epithelial cells (choroid epitheliocytes) that cover a rich network of fenestrated capillaries. The choroid epitheliocytes produce and secrete into the ventricles of the brain the cerebrospinal fluid (CSF) that occupies also the subarachnoid space and cavities of the spinal cord.
The epithelium and its underlying tissue are folded into numerous villi, an arrangement that increases the production of CSF. Its epithelium was already shown in the chapter on Epithelial Tissue Click to review the epithelium.
The image shows a region of the choroid plexus placed on the surface of the cerebellum (seen on the left).
Hover your cursor over the image or click over the image to identify the choroid plexus, highlighted in blue.
